Radial drill.



w W. T. SEARS.

RADIAL DRILL.

APPLICATION FILED MAR 27, 1913v 1,076,242, Patented Oct. 21, 1913.

2 SHEBTS SHEET 1.

Zi'lnsses: jimentor:

WZQSears W. T. SEARS.

RADYAL DRILL.

APPLICATION FILED MAR\27,1913

1 76,242, Patented Oct. 21, 1913.

2 QHEETB'QHEET 2.

omsn smrr s irrsu'r o WEI T. ESEABS, SF HAll'HLTGN, OHIO, ASSYGNOR Ti PBATT 8 NEITNEY C(DMPANE",

" OF HAETFGRD, CQHNECTKCUT, is CORPGBATIGN OF NEW JERFJIQY.

RADIBLL DRILL.

Specification of Letters l'ateot.

ionization filed March 2?, 1913. Serial No. 757,129,

To a7? whom 2'5 may concern Be it known that I, YVILLARD 1".6fisnns a citizen pf the United States, residing at Hamilton, in the county of Butler 21ml State of Ohio, haw: invented new and fol Improvements in Radial Drills, 03? which the following is a specification.

This invention relates to radial-drills, one of the objects of the invention bring the provision of means which is certain. positive and effective in operation by which tho simul taneous shifting of two mechanisms (one or both of which my be manually gorernm'l} into Working ialii'lion prevented.

In the drawings zu-rompanyiug and form's iug part. of tho preseiu sporitirrmiou l reprosent in detail one of tho several muronir-nt forms of emhr. linicnt of the iuventi which to enable those skillwl in the art t= practise the same. will in; S'cl imtla iull in tho following iliff'ii'l li'lll u. l slo not rrslrui myself to this mowing i may (lvpurt ilu l'ofrom in sovm'al rospols within il'u: SIUPQ f the. im'ent'ion lrliruul by the claims following said description.

Referring to soul drawings: Figure l in a top plan view partly in scrtion. of s radish (lrill involving my im'rulion. Fig 2 is u side elevation partly in sertion oi the aims. Figs. 3 and 4 are vortiral swrtiouul vi ws of clamping means, in two (liflercnt positions Figs. 5 and 6 an: (letuii Jivws ir. elevation of an operating lov r lr reiusfter more gun ticularl desr-rihoel. l igjs. T mul 8 are hori mural sectional views of the part 'uown ii: Fi 3 and 4 nrul in nosilious vorr w nding res n tivoly tlun'cuil'h. his. 9 n swi'ion on the line s -"9 of 2 looking in the direction of the arrow.

Lil: characters refer to like parts throughoutrlio sovornl figures of the drawings, which it will he soon are on ililloront scales.

gether by the tie member 5 which extends through the SPEN'Q between the sections of the coluinrn the latter having ways to sun port and guide the arm 3 and bracket 4 vertionl arli .stments, the tie member 5 partaking of ill ruowuiont. The bracket 3*. sustains the motor 6 whisli is adapted to drive through interposed gearing, the shaft a brief description of 4, The forogroin the radial (lrill set forth in my copeniiiug zi 'iplimtion F r-rial No. 725,416, filgtl 013m 1912. and the improvements are 955 i I well arlupisrl tor incorporation in ll;

rhino, although as will be err t they 7211: he rn'xployscl with equal utility oiluzr P mrm -rions. it will he reu'iomh i t in saiil prior application said shat is urlapt tl ugrli i Li:

C the intervsnt' u of suit ll-spinfile a pinion 9 fastened o spur gear 10 fixorl zutt ieli in turn has fastened M uiuim: :2 in mesh with tho spur .i light on the shaft. 7. It will, there fol-v. ('lmr illui when the armature shaft i-oisitwl, tho shaft 7 and shaft 11. through tho lIliPIYPW 'llHll: train of gears (lesurihr-(l will be rotated will also the drill spizulio.

l lltrfll :lrmuiy stated one of tl'z. prinipul i)l)l(CiS of tho'invcution is tl pro- Vision of llKtfilSliV which the simultaneous mmvmvnt oi"- a plurality of mechanisms, at l sst our 0% u'iiz-h is manually operable into uniting relation will he positively pre- -lu:lu li in ii invsont organization both of llltl ma hnu uzs are manually operable, and although tl may perform any tuna lion, one oi the n'iearlmnisms :Ktlzli'eS clamp-- in; means for the vertical adjustable urn: 95 3, While the other throws into and out of zu-tion tho adjusting mechanism for said arm. the construction being such that the mechanism for raising by power, said arm 3 cannot he in notion While the head is clamped un'l vire It will be clear that the slamming and adjusting means may my rmlirnlly as to character. although those shown have been founcl satisfactory and will hereinafter he described.

ll'ithin the :olnmn 2 is a rotary fee lscrew 14 whirl immovable in the direction of its lonoiiurli Lil and also prevented from rotatin quite common in this art. This feed soreW 1Q sxtends through. :5. are

operating nut 15 supported in the arm 3. It will be clear that if the nut 15 be rotated the arm 3 will be raised or lowered dependiug upon the direction in which said nut is 5 turned, provided said head 3 be in unclamped condition. If said arm be not unclainped it cannot thus be adjusted.

Fastened to the shaft 16 supported for oscillation by suitable bearings on the bracket 4, is the handlever 17 by which said shaft 16 can be rocked. Said shaft 16 has at its inner end the eccentric stud 18 fitting a notch or slot 19 the bar 20 slidably supported by bearings upon the tie member 5. Fastened to the bar 20 is the collar 21 having a finger or projection 22 to enter a peripheral groove or channel in the clutch member 23 splined to the shaft 11 and cooperative with the clutch member 24 rigid with the worm 25, the nut 15 having a worm gear 26 engageable by "said worm. The nut is carried in bearings 52 which is a part of the tie member 5 a collar 50 threaded on the nut holding said nut in place. In Fig. 2 the clutch member 23 is out of engagement with the clutch member 24 at which time the worm gear 26, nut 15 and arm 3 are at rest. It will be assumed that it is desiredto adjust said arm and that the controlling mechanism is in such relation to permit the same. In this case the lever 17 is swung up thereby rocking the shaft 16 and ithrough the stud l8 thrusting the bar 20 forward, so that the collar 21 will push the clutch member 23 into engagement with the; companion clutch member 24 whereby through the connections described the worm 25 will be rotated to rotate the worm gear 26 and consequently the nut 15 to eflect the adjustment of the arm 3. v

Set into grooves formed at the junction of the column 2, bracket 4 and tie member 5.

are the complemental clamping members 27 which as will hereinafter appear move up and down with the bracket 4 and connected arm 3 and which also engage against the column 2 when it is desired to hold the arm 3 in an adjusted position. Extending through these clamping members 27 are the rods 28, each rod at one end being provided with holding and check nuts 2!) and prevented from revolving by any suitable means, while their other ends are furnished with adjusting nuts3O constituting the hubs of hand levers 31 ivhich hand levers have two positions, an ineffective or non-clamping position as shown in Figs. 4, 5 and 7 and a clamping position as shown in Figs. '1, 3, 6 and 8.

Cooperative with the nuts 30 and necessarily the hand levers 31 and also cobperative with the hand lever 17 is a controlling member hereinafter described which controlling member has two positions being adapted when in one of said positions to permit the setting of the clamping members 27 through. the action of the levers 31 and simultaneously to prevent the movement of the hand lever 17, while when in the other position said controlling member permits the movement of the lever 17 but prevents the setting of either or both clamping members, so that when said controlling member is in said first position, the arm 3 can be raised or lowered but not clamped, and when in said second position, said arm can be clamped but cannot be raised or lowered, the said controlling member, therefore, acting as an interlock.

A controlling member which answers my requirements is such a one as that denoted in a general way by 32, being shown as consisting of an elongated plate having longitudinal slots 33 near its terminals to receive the rods 28, said terminals being situated between the adjusting nuts 30 and the laterally enlarged portions 34 of the clamping members 27. The outwardly projecting parts of the enlarged portions 34 have the vertical faces 35 and 36 and the connecting oblique face 37, the faces 36 being back of the faces The adjacent portions of the terminals of said controlling or interlocking members 32 have the vertical faces 38, 39 and 40 connected by short oblique faces41 and 42, the face 38 being forward of the 5 face 39 and the face 39 being forward of the face 40. In Fig. 4 the controlling or interlocking member 32 is shown as being in its elevated position, the upper walls of the slots 33 being above the rods 28 and there being a space or interval between the terminals of said controlling member and the enlargements 34, the hand levers 31 at this time extending upward as shown in said Fig, 4 and also in Fig. 5. Therefore, if said hand levers 31 be swung down through a quarter of a circle, they cannot operate the clamping device 27 an extent sufiicient to set the same owing to the fact that the thinner cndsof said controlling member 32 are opposite the enlargements 34. If the corn trolling members 32, however, be drawn downward so that their thick portions fill the spaces between the nuts 30 and the enlargements 34, the clamps 27 can be set when the levers 31 are drawn downward. The nuts 30 are peripherally cut away or segmentally slotted as at 43 to receive the stationary stops 4-4 on the bracket 4, one end wall of each slot 43 engaging the cotiperating stop 44 when the lever 31 having the same is in one position, while the other end wall of said slot engages said stop when said lever is in the other position, the slots being of such length as to permit only a quarter of a turn of said hand levers 31. The hand lever 17 has a crank portion 45 connected by a link 46 with the controlling member or bar 32. In Fig. 2 the arm 3 is clamped in an adjusted position, the two levers 31- at this time being in their positions and the upper ends (j the slots 83 being against the rods 28 When the arin i l clamped it will be clear that the controlling member 32 is also clamped, so that should any attempt be made to shift the lever 17 by hand. such shifting cannot be aceompliahcd, owing to the fact that said controlling member is locked firmly and substantially against movement. Before the controlling" member and therefore the lever 17 can be shifted, it. will be necessary to swing the levers 31 up and on the C(iIiClllSiOl'l of such movement the member 32 is released, so that. the lever 17 can be then swung up to throw the rlntoh member 23 into engagement with the clutch member 2% as already deerri'oed. As the lever 17 is elevated to client the. engagement between these two elutch members the eon trolling member 32 is by reason of its, linl; connection With said lever ii elevated to :1 position Where the arm 3 cannot be clamped.

'hat. I claim is:

l. In a radial drill, the combination oi a, vertically adjustable arm, adjuiiing; means. for .aaid arm, clamping mean: l -r said arm. and n cvh'aniem for preventing the oprrar tion of one oi said means when the other is in meration.

Q. in a radiil drill, the combination of a vertically Zltlllltiiililll arm. adjusting mechanism for said arm, clamping; nicrhaniem tor said arm, and nierlmniem for positively pre venting: the operation of earli of said iii'el mentioned mrrlianisnh when the other is in operation.

3. In a. radial drill, the combination of a vertically adjustable arm. mechanism (or ad usting Saul arm, means (.(Fiiilit'lillltl a levcr adapted n its n'u'ivcmont, to throw said adjusting, invclianiam into operation, clampin; lilttlltlllllil for the brad, meane c mpi ,L; ing a liner, adapted on its movcn'icnl to said clanii'ingz imirhanir ni. and meansv co o u'arative nilh the two lcvcre for prevent inn :llllllliilllUUllH tiperiiliiig thereof.

l. in a radial drill, the combination oi a vertically iuljiratahlc arm, :uliiotin hiiv'i anism for said arm, mcchaniem including a manually operable member, adapted for tliron oai aid atljualing infirlianiem into action, rlamping incclmniHi-i'i for the head, rnwlnininn including a manually operable memb r adapted on its movement; to act the clamping llllf' ifili'llffllh and nu-anzs coopvra tire with the manually operable numbers for p'lQVCiliiHgI ;--,ill'llllllllNHHiy their opeiniinn; movements.

1'. in a radial drill. the rombinatioii of a vertically :uliudable head, a clamping" mom her, a lllillllltlll" operable member ooiipcrz-i tii \iith said clamping member, a. derive l l l l l l l l l 1 I l l l l l l E; l l l l l i l l l l l between said manually operable member and. clamping member, having two positions being adapted when in one of said positions to permit the setting of the clamping member by said manually operable device and when in the other position to prevent the setting of said clampingmembcr'by said manually operable member, adjusting mechanism for said arm, a nnmnally operable member shii'tablc from an operative to an inopera- Live position and from. an inoperative to an operative position, means actuated by aid manually operable member for throwing the adjusting mechanism into action on the movement thereof from an inoperative to opifiativc position and for throwing said adjusting mechanism out of action on the thereof from operative to inopand a connection between said second manually operable member and said device for shifting the. latter into clamped non setting position, when said sec ond manually operable device is in opcra live relation and for shifting said device into clamped setting relation when said Se f ond manually operable device is in opera live relation and for shifting said devi e into clamped setting relation when said wend manually ope able device is in inoperzv tivo relation.

(3. In a radial drill, the combination of vertical column in laterally separated secllUllrE. a drill supporting arm adjustably littcd against the sections of the column, a driving device for the drill located at. the side of the column opposite that against which said arm tits, operative connetions betwe n said drivinp device and the arm, ad iuetmg means for said arm, clamping means for said arm, and meclmnisn'i for positively preventing the operation of each of said means into operation when the other is in operation.

7. in a radial drill, the combination of a vertical column in sections, a vertically adjustable arm having a bearing engagement with the sections of the column, clamping means for the arm, comprising separate clamping devices cooperative with the re repetitive sectioim; of the column, adjusting mechanism for said arm, and mechanism for prenintinp the operation of the clamping incohanism when the adjusting mechanism is in op ration and for preventing the op eration oi the adjusting; mechanism when the clamping mechanism is in operation.

In lenimony whereof I aflix my in presence of two witness mo vement erative position,

\Yitnessrs:

Anoirsr J, ii I'PIMANN. (l'r'ro lans'r.

signature 

